Year	constant 2010 US$
1971	20285.6691251527
1972	20859.1450562045
1973	22066.071774
1974	22969.4934403119
1975	21971.1057775536
1976	21780.9760433469
1977	20888.9318902739
1978	20873.4010720092
1979	21576.803547014
1980	21837.9061784023
1981	22744.4408749402
1982	22657.792390376
1983	22898.664556666
1984	23527.7042008825
1985	23651.7352456089
1986	24359.255400738
1987	24289.7340766607
1988	24325.7139446675
1989	24234.6423656665
1990	24135.7584517258
1991	22184.2000631094
1992	22249.588833482
1993	23226.0411069092
1994	24184.8920082825
1995	25097.1567456171
1996	25299.3731683739
1997	25834.1965265895
1998	26188.6061427537
1999	27091.1908492121
2000	27808.9797412918
2001	28762.5466672823
2002	29602.9628473291
2003	30410.6685627506
2004	30884.4586103351
2005	31289.3750709476
2006	31720.7672901054
2007	32159.6856736421
2008	31551.9152317183
2009	32198.9183754976
2010	32017.9130735123
2011	32654.7560213574
2012	33342.9995331768
2013	33980.2158950076
2014	34682.4990143978
2015	35507.7905347681
2016	36087.8650428256
2017	36223.899061551